CN111731338A - Anti-collision protection device, rail car and same-rail operation equipment - Google Patents
Anti-collision protection device, rail car and same-rail operation equipment Download PDFInfo
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- CN111731338A CN111731338A CN202010739422.6A CN202010739422A CN111731338A CN 111731338 A CN111731338 A CN 111731338A CN 202010739422 A CN202010739422 A CN 202010739422A CN 111731338 A CN111731338 A CN 111731338A
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- 230000001960 triggered effect Effects 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to the technical field of anti-collision structures, in particular to an anti-collision protection device, a rail car and co-rail running equipment. The collision avoidance device includes: fixing the collision rod; the telescopic striker is sleeved inside or outside the fixed striker along the length direction and is suitable for moving along the length direction of the fixed striker under the action of external force; and the mechanical switch is suitable for being triggered when the telescopic striker and the fixed striker are relatively displaced. According to the anti-collision protection device provided by the invention, the telescopic striker is sleeved inside or outside the fixed striker along the length direction, so that the telescopic striker can move along the length direction of the fixed striker under the action of external force and trigger the mechanical switch when moving, and therefore, a shutdown action is triggered when collision occurs, and the anti-collision protection effect is achieved.
Description
Technical Field
The invention relates to the technical field of anti-collision structures, in particular to an anti-collision protection device, a rail car and co-rail running equipment.
Background
In a production enterprise, in order to improve the transportation efficiency of materials, a plurality of mobile devices are often arranged on the same track so as to move the materials simultaneously. The rail-moving type material piling and taking equipment has the characteristics of large mass, heavy weight and very large inertia; for the mobile material piling and taking equipment of two adjacent common rails, once a collision accident occurs, the loss is very disastrous. In order to avoid collision between the common rail devices, anti-collision protective measures are usually set, infrared, laser or ultrasonic detection signals are usually adopted as the anti-collision protective measures, the positions of two adjacent common rail devices are judged through a PLC in a wireless or wired mode, and when the distance is smaller than a preset value, control measures are taken. However, the above anti-collision protection measures in the form of detection signals all have certain failure risks to severe environments with large dust concentration in bulk cargo storage yards.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the collision-proof protection measures in the form of detection signals are easy to fail in the prior art, and thus provide a collision-proof protection device in a mechanical form.
The invention aims to solve another technical problem of overcoming the defect that the collision avoidance measures in the form of detection signals are easy to lose effectiveness in the prior art, and therefore, the invention provides the railway vehicle with the mechanical collision avoidance device.
The invention also aims to overcome the defect that the anti-collision protection measures in the form of detection signals are easy to lose effectiveness in the prior art, thereby providing the on-track running equipment with simple and effective anti-collision protection measures.
In order to solve the above technical problem, the present invention provides an anti-collision protection device, including:
fixing the collision rod;
the telescopic striker is sleeved inside or outside the fixed striker along the length direction and is suitable for moving along the length direction of the fixed striker under the action of external force; and
and the mechanical switch is suitable for being triggered when the telescopic striker and the fixed striker are relatively displaced.
Furthermore, the mechanical switch is fixedly arranged on the fixed collision bar or the telescopic collision bar, and the mechanical switch is arranged at the intersection position of the fixed collision bar and the telescopic collision bar.
Further, still include: and the at least one first follow-up wheel is arranged at the bottom of the fixed collision rod.
Further, still include: and the at least one second follow-up wheel is arranged at the bottom of the telescopic collision rod.
Further, still include: and the spring positioning pin is arranged at the intersection position of the fixed striker and the telescopic striker and is suitable for movably connecting the fixed striker and the telescopic striker.
Further, still include: and the trigger handle is arranged at the opposite position close to the first end of the telescopic striker, and is suitable for triggering the mechanical switch.
Further, the second end of the telescopic striker is provided with a collision part.
Further, the maximum moving distance L1 of the telescopic striker relative to the fixed striker is smaller than the distance L2 from the first end of the telescopic striker to the opposite far end of the fixed striker in an unfired state, wherein L1 is greater than 0m, and L2 is greater than 0 m.
The invention provides a rail car, comprising: the anti-collision protection device comprises a vehicle body and the anti-collision protection device arranged at least one end of the vehicle body along the running direction.
The invention provides a same-rail running device, which comprises: at least two adjacently arranged vehicle body bodies; the anti-collision protection device is arranged on the adjacent sides of the two adjacently arranged vehicle body bodies respectively.
The technical scheme of the invention has the following advantages:
1. according to the anti-collision protection device provided by the invention, the telescopic striker is sleeved inside or outside the fixed striker along the length direction, so that the telescopic striker can move along the length direction of the fixed striker under the action of external force and trigger the mechanical switch when moving, and therefore, a shutdown action is triggered when collision occurs, and the anti-collision protection effect is achieved.
2. According to the anti-collision protection device provided by the invention, the mechanical switch is arranged at the intersection position of the fixed collision bar and the telescopic collision bar, so that the mechanical switch can be conveniently triggered in time at the initial stage of movement of the telescopic collision bar, a margin is reserved for the movement distance of the telescopic collision bar, and the safety distance is ensured.
3. According to the anti-collision protection device provided by the invention, the fixed collision rod and the telescopic collision rod are movably connected through the spring positioning pin, so that the telescopic collision rod and the fixed collision rod can keep relatively static and can realize relative movement when collision occurs.
4. According to the anti-collision protection device provided by the invention, the trigger handle is arranged at the opposite position close to the first end of the telescopic striker, so that the mechanical switch can be triggered by the trigger handle when the telescopic striker moves relative to the fixed striker after collision, and further, the shutdown action is triggered, and the effect of collision protection is achieved.
5. According to the anti-collision protection device provided by the invention, the L2 is larger than the L1, so that the impact on the fixed end of the fixed striker caused by the overlong moving distance of the telescopic striker is avoided, and the normal operation of the second follow-up wheel can be ensured.
6. According to the rail car provided by the invention, the telescopic collision rod is sleeved inside or outside the fixed collision rod along the length direction, so that the telescopic collision rod can move along the length direction of the fixed collision rod under the action of external force and trigger the mechanical switch when moving, and therefore, a shutdown action is triggered when collision occurs, and the rail car is protected from collision.
7. According to the same-rail running equipment provided by the invention, the telescopic collision rod is sleeved inside or outside the fixed collision rod along the length direction, so that the telescopic collision rod can move along the length direction of the fixed collision rod under the action of external force and trigger the mechanical switch when moving, and therefore, a shutdown action is triggered when a collision occurs, so that a collision protection effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of two crash protection devices of the present invention in contact;
FIG. 2 is a schematic view of a crash protection apparatus of the present invention;
FIG. 3 is a schematic size view of the crash protection apparatus of the present invention;
FIG. 4 is a schematic view of the installation state of the mechanical switch of the present invention;
fig. 5 is a schematic view showing an installation state of the spring fixing pin.
Description of reference numerals:
10-a vehicle body, 20-a fixed ram, 21-a first follow-up wheel, 30-a telescopic ram, 31-a second follow-up wheel, 32-a collision part, 40-a mechanical switch, 41-a trigger handle, 51-a spring, 52-a movable pin and 53-a positioning hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example one
Referring to fig. 1 to fig. 3, the collision avoidance apparatus provided in this embodiment includes:
a fixing lance 20;
the telescopic striker 30 is sleeved inside or outside the fixed striker 20 along the length direction, and the telescopic striker 30 is suitable for moving along the length direction of the fixed striker 20 under the action of external force; and
a mechanical switch 40 adapted to be triggered when the retractable striker 30 and the fixed striker 20 are relatively displaced.
Preferably, in the embodiment, the fixed striker 20 is configured as a rod-shaped structure, and correspondingly, the retractable striker 30 is also configured as a rod-shaped structure, and in order to facilitate the telescoping of the retractable striker 30 with the fixed striker 20 along the length direction, the shapes of the retractable striker 30 and the fixed striker 20 along the length direction are matched.
In this embodiment, it is preferable that the retractable striker 30 is sleeved inside the fixed striker 20 along the length direction, and the outer surface of the retractable striker 30 is attached to the inner surface of the fixed striker 20.
As a modification, in order to facilitate the movement of the retractable striker 30 inside the fixed striker 20, a structure such as a slide, a horizontal roller, or a roller is provided between the retractable striker 30 and the fixed striker 20.
The retractable striker 30 is adapted to move along the length of the fixed striker 20 by an external force and to trigger the mechanical switch 40 when moving, so that the mechanical switch 40 issues a stop command.
The anti-collision protection device provided by the embodiment is provided with the telescopic striker 30 in a sleeved mode in the inside or outside of the fixed striker 20 along the length direction, so that the telescopic striker 30 can move along the length direction of the fixed striker 20 under the action of external force and trigger the mechanical switch 40 when moving, and therefore, when collision occurs, a shutdown action is triggered, and the effect of collision protection is achieved.
Specifically, the mechanical switch 40 is fixedly mounted on the fixed striker 20 or the retractable striker 30, and the mechanical switch 40 is disposed at an intersection position of the fixed striker 20 and the retractable striker 30.
Preferably, in this embodiment, the mechanical switch 40 is fixedly mounted on the fixed striker 20, and is preferably disposed near an intersection position of the fixed striker 20 and the retractable striker 30, where the intersection position is a distal end of the fixed striker 20 relative to a fixed end, and is a starting end of the retractable striker 30 relative to the fixed striker 20, and the mechanical switch 40 is disposed at this position, so that the mechanical switch 40 can be triggered in time at an initial stage of movement of the retractable striker 30, and a margin is left for a movement distance of the retractable striker 30, thereby ensuring a safety distance.
Specifically, the collision avoidance device further comprises: at least one first follower wheel 21 is provided at the bottom of the fixed striker 20.
Preferably, the first follower wheel 21 is adapted to slide on a predetermined track, and the first follower wheel 21 can support the fixed striker 20 to ensure a follow-up motion of the fixed striker 20.
Specifically, the collision avoidance device further comprises: and at least one second follower wheel 31 provided at the bottom of the retractable striker 30.
Preferably, the second follower wheel 31 is adapted to slide on a preset track, and the second follower wheel 31 can support the retractable striker 30, so as to ensure the follow-up motion of the retractable striker 30, and ensure the moving direction of the retractable striker 30 when the retractable striker 30 collides, thereby avoiding the jamming.
Specifically, as shown in fig. 5, the collision avoidance apparatus further includes: and the spring positioning pin is arranged at the intersection position of the fixed striker 20 and the telescopic striker 30 and is suitable for movably connecting the fixed striker 20 and the telescopic striker 30.
The spring positioning pin is adapted to be at least partially disposed inside the retractable striker 30 in the width direction, and includes:
a positioning hole 53 penetrating the fixing striker 20;
a movable pin 52 having a first end configured as an arc-shaped end cap, a maximum end diameter of the arc-shaped end cap being larger than a diameter of the positioning hole 53; in the clamping state of the movable pin 52 and the positioning hole 53, at least part of the arc-shaped end cap extends into the positioning hole 53, and at least part of the area is left outside the positioning hole 53; the second end of the movable pin 52 penetrates into the interior of the fixed striker 20 in the width direction;
and a spring 51 abutting against a second end of the movable pin 52 and adapted to apply an elastic force to the movable pin 52 outward in the width direction.
In a normal operation state, in order to ensure that the relative position between the retractable striker 30 and the fixed striker 20 does not move, the movable pin 52 abuts against the positioning hole 53, and the fixed striker 20 and the retractable striker 30 are ensured to be in a relatively static state.
When the retractable striker 30 collides, the movable pin 52 is disengaged from the positioning hole 53 by an external force, so that the retractable striker 30 and the fixed striker 20 can move relative to each other.
The anti-collision protection device provided by the embodiment is characterized in that the fixed striker 20 is movably connected with the telescopic striker 30 through the spring positioning pin, so that the telescopic striker 30 and the fixed striker 20 can keep relatively static and can realize relative movement when collision occurs.
Specifically, as shown in fig. 4, the collision avoidance apparatus further includes: a trigger handle 41 disposed at an opposite position near the first end of the retractable striker 30, the trigger handle 41 being adapted to trigger the mechanical switch 40.
In this embodiment, the first end of the retractable striker 30 refers to a contact end of the retractable striker 30 with the fixed striker 20, that is, an end of the retractable striker 30 close to the fixed striker 20. Correspondingly, the second end of the retractable striker 30 refers to the end of the retractable striker 30 away from the fixed striker 20.
Preferably, when the retractable striker 30 is located inside the fixed striker 20, the trigger handle 41 is configured as a rod-shaped structure, one end of which is fixed to the retractable striker 30 along the length direction thereof, and the other end of which extends out of the fixed striker 20 and is adapted to be in movable contact with the mechanical switch 40.
Preferably, when flexible lance 30 is located when fixed lance 20 is inside, trigger handle 41 fixed mounting be in on the flexible lance 30, and the corresponding position of fixed lance 20 is provided with the groove of stepping down, the groove of stepping down is followed the length direction of fixed lance 20 extends, and is convenient trigger handle 41 follows flexible lance 30 is in fixed lance 20 is inside to be removed, avoids again simultaneously fixed lance 20 with trigger handle 41's mutual interference.
The anti-collision protection device provided by the embodiment is close to the relative position of the first end of the telescopic striker 30, and is provided with the trigger handle 41, so that convenience can be brought to the telescopic striker 30 after collision, relatively when the fixed striker 20 moves, the mechanical switch 40 can be triggered by the trigger handle 41, and then the shutdown action is triggered, and the effect of collision protection is achieved.
Specifically, the second end of the telescopic striker 30 is provided with a collision portion 32.
Preferably, the collision part 32 may be made of a soft material, such as rubber.
Specifically, as shown in fig. 3, the maximum moving distance L1 of the retractable striker 30 relative to the fixed striker 20 is smaller than the distance L2 from the first end of the retractable striker 30 to the opposite distal end of the fixed striker 20 in the non-activated state, wherein L1 > 0m and L2 > 0 m.
Preferably, the maximum moving distance L1 of the retractable striker 30 with respect to the fixed striker 20 is specified as a distance of the second follower wheel 31 from a distal end of the relatively fixed end of the fixed striker 20.
Preferably, a limit structure is arranged on the retractable striker 30 and/or the fixed striker 20 to prevent the relative displacement between the retractable striker 30 and the fixed striker 20 from being too large.
The anti-collision protection device provided by the embodiment is provided with L2 being greater than L1, so that the impact on the fixed end of the fixed striker 20 caused by the overlong moving distance of the telescopic striker 30 is avoided, and the normal operation of the second follower wheel 31 can be ensured.
Preferably, a buffer spring is further disposed between the first end of the retractable striker 30 and the opposite far end of the fixed striker 20, and the buffer spring can absorb the impact force received by the retractable striker 30, and can facilitate the return of the retractable striker 30 under the action of elastic force.
Example two
As shown in fig. 2, the present embodiment provides a rail car, including:
a vehicle body 10, and
the collision protection device is arranged at least one end of the vehicle body 10 along the running direction.
The inside or the outside of fixed lance 20 of the railcar that this embodiment provided cup joints along length direction and is provided with flexible lance 30, makes flexible lance 30 can follow under the exogenic action fixed lance 20's length direction removes to trigger when removing mechanical switch 40, thereby trigger the shut down action when the collision takes place, it is right the railcar plays the effect of collision protection.
EXAMPLE III
As shown in fig. 1, the present embodiment provides a device for operating on the same track, including:
at least two adjacently disposed vehicle body bodies 10;
the collision avoidance device according to the above embodiment is disposed on the adjacent sides of two adjacent vehicle bodies 10.
Preferably, the minimum safety distance L3 between two adjacent vehicle body bodies 10 is twice the sum of the lengths of the fixed striker 20 and the telescopic striker 30 in the relative rest state, wherein L3 is greater than 0 m. Preferably, the mechanical switch 40 is triggered when the distance between two adjacent vehicle body bodies 10 is less than the minimum safety distance L3.
The same rail operation equipment that this embodiment provided cup joints along length direction in the inside or outside of fixed lance 20 and is provided with flexible lance 30, makes flexible lance 30 can follow under the exogenic action the length direction of fixed lance 20 removes, and triggers when removing mechanical switch 40 to trigger the shut down action when the collision takes place, play collision protection's effect, and this embodiment adopts mechanical form's collision protection device, plays the effect when the collision protection device contact of two relative settings, and the condition emergence of the easy condition that loses efficacy of the collision protection measure of having avoided traditional infrared, laser or ultrasonic detection signal form under the big operating mode of dust concentration reduces the occurence of failure probability, improves the security.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An anti-collision protection device, characterized by comprising:
a fixed lance (20);
the telescopic striker (30) is sleeved inside or outside the fixed striker (20) along the length direction, and the telescopic striker (30) is suitable for moving along the length direction of the fixed striker (20) under the action of external force; and
a mechanical switch (40) adapted to be triggered upon relative displacement of the telescoping striker (30) and the stationary striker (20).
2. The crash protection device according to claim 1, wherein the mechanical switch (40) is fixedly mounted on the fixed striker (20) or the retractable striker (30), and the mechanical switch (40) is disposed at an intersection position of the fixed striker (20) and the retractable striker (30).
3. The crash protection device as recited in claim 1, further comprising: at least one first follower wheel (21) is provided at the bottom of the fixed striker (20).
4. The crash protection device as recited in claim 1, further comprising: and at least one second follow-up wheel (31) arranged at the bottom of the telescopic striker (30).
5. The crash protection device as recited in any one of claims 1-4, further comprising: and the spring positioning pin is arranged at the intersection position of the fixed striker (20) and the telescopic striker (30) and is suitable for movably connecting the fixed striker (20) and the telescopic striker (30).
6. The crash protection device as recited in any one of claims 1-4, further comprising: a trigger handle (41) disposed in an opposing position proximate to the first end of the telescoping ram (30), the trigger handle (41) adapted to trigger the mechanical switch (40).
7. The crash protection device as claimed in claim 6, characterized in that the second end of the telescopic striker (30) is provided with a collision portion (32).
8. The crash protection device according to claim 6, wherein a maximum moving distance L1 of the retractable striker (30) relative to the fixed striker (20) is smaller than a distance L2 of the first end of the retractable striker (30) from the opposite distal end of the fixed striker (20) in an unactuated state, wherein L1 > 0m and L2 > 0 m.
9. A rail car, comprising:
a vehicle body (10), and
the crash protection device as claimed in any one of claims 1 to 8 provided at least one end of said body (10) in the direction of travel.
10. An in-orbit operation device, comprising:
at least two adjacently arranged body bodies (10);
the crash protection device according to any one of claims 1 to 8 is arranged on the adjacent side of two adjacently arranged vehicle body bodies (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739422.6A CN111731338A (en) | 2020-07-28 | 2020-07-28 | Anti-collision protection device, rail car and same-rail operation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739422.6A CN111731338A (en) | 2020-07-28 | 2020-07-28 | Anti-collision protection device, rail car and same-rail operation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111731338A true CN111731338A (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010739422.6A Pending CN111731338A (en) | 2020-07-28 | 2020-07-28 | Anti-collision protection device, rail car and same-rail operation equipment |
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| Country | Link |
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| CN (1) | CN111731338A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100064931A1 (en) * | 2008-09-15 | 2010-03-18 | Voith Patent Gmbh | Vehicle front-end module for mounting to the front end of a rail-borne vehicle, in particular a railway vehicle |
| CN108163005A (en) * | 2018-01-10 | 2018-06-15 | 西华大学 | A kind of tramcar and car collision avoidance System |
| CN108583496A (en) * | 2018-05-31 | 2018-09-28 | 广汽零部件有限公司 | Trigger device and proactive system for rear-end collision collision safety safeguard measure |
| CN212243378U (en) * | 2020-07-28 | 2020-12-29 | 华电重工股份有限公司 | Anti-collision protection device, rail car and same-rail operation equipment |
-
2020
- 2020-07-28 CN CN202010739422.6A patent/CN111731338A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100064931A1 (en) * | 2008-09-15 | 2010-03-18 | Voith Patent Gmbh | Vehicle front-end module for mounting to the front end of a rail-borne vehicle, in particular a railway vehicle |
| CN108163005A (en) * | 2018-01-10 | 2018-06-15 | 西华大学 | A kind of tramcar and car collision avoidance System |
| CN108583496A (en) * | 2018-05-31 | 2018-09-28 | 广汽零部件有限公司 | Trigger device and proactive system for rear-end collision collision safety safeguard measure |
| CN212243378U (en) * | 2020-07-28 | 2020-12-29 | 华电重工股份有限公司 | Anti-collision protection device, rail car and same-rail operation equipment |
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Country or region after: China Address after: 100071 11 / F, block B, building 1, yard 6, Automobile Museum East Road, Fengtai District, Beijing Applicant after: Huadian Technology Co.,Ltd. Address before: 10th Floor, Building B, Huadian Industrial Park, East Road of Automobile Museum, Fengtai District, Beijing Applicant before: HUADIAN HEAVY INDUSTRIES Co.,Ltd. Country or region before: China |